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Company | JASCO | JASCO | JASCO | JASCO | JASCO |
Item | V-730 UV-Visible Spectrophotometer | J-1700 Circular Dichroism Spectrophotometer | V-750 UV-Visible Spectrophotometer | V-760 UV-Visible Spectrophotometer | V-770 UV-Vis/NIR Spectrophotometer |
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Catalog Number | V-730 | J-1700 | V-750 | V-760 | V-770 |
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Type | UV-Visible | Circular Dichroism | UV-Visible | UV-Visible | UV-Visible/NIR |
Wavelength Range | 190 to 1,100 nm | 163 to 2500 nm (Option: 163 to 950 nm (PMT) / Option: 900 to 2500 nm (InGaAs) | 190 to 900 nm | 187 to 900 nm | 190 to 2,700 nm (3,200 nm, option) |
Wavelength Accuracy | ±0.2 nm (at 656.1 nm) | Inquire | ±0.2 nm (at 656.1 nm) | ±0.1 nm (at 656.1 nm) | ±0.3 nm (at 656.1 nm) ± 1.5 nm (at 1312.2 nm) |
Scanning Speed | 10 to 8,000 nm/min | up to 10,000 nm/min | 10 to 4,000 nm/min (8,000 nm/min in preview mode) | 10 to 4,000 nm/min (8,000 nm/min in preview mode) | 10 to 4,000 nm/min (8,000 nm/min in preview mode) |
Spectral Bandwidth | 1.0 nm fixed | 0.01 to 16 nm (163 to 950 nm) / 5, 10, 20, 30, 40, 50 nm (950 to 2,500 nm) | 0.1, 0.2, 0.5, 1, 2, 5, 10 nm L2, L5, L10 nm (low stray light mode) M1, M2 nm (micro cell mode) | 0.1, 0.2, 0.5, 1, 2, 5, 10 nm L2, L5, L10 nm (low stray light mode) M1, M2 nm (micro cell mode) | UV-Vis: 0.1, 0.2, 0.5, 1, 2, 5, 10 nm L2, L5, L10 nm (low stray light mode) M1, M2 nm (micro cell mode) NIR: 0.4, 0.8, 1, 2, 4, 8, 20, 40 L8, L20, L40 nm (low stray light mode) M4, M8 nm (micro cell mode) |
Optical System | Rowland off-circle arrangement Single monochromator Double beam type | Double-prism polarizing monochromator and grating monochromator | Czerny-Turner mount Double monochromator Fully symmetrical double beam type | Czerny-Turner mount Single monochromator Fully symmetrical double beam type | Czerny-Turner mount Single monochromator Fully symmetrical double beam type |
Light Source | Halogen lamp, Deuterium lamp | 150W air-cooled Xe lamp or 450W water-cooled Xe lamp | Halogen lamp, Deuterium lamp | Halogen lamp, Deuterium lamp | Halogen lamp, Deuterium lamp |
Resolution | =BS8 | Wavelength Resolution: 0.025 nm / CD Resolution: 0.00001 mdeg | =BS9 | =BS10 | =BS11 |
Description | The V-730 UV-Visible Spectrophotometer is designed for accurate and reliable absorption and transmittance measurements. Innovative features include IQ Accessory automatic recognition and IQ Start for push-button operation of routine measurements. The wide wavelength range from 190 to 1,100 nm The V-730 UV-Visible Spectrophotometer is designed for accurate and reliable absorption and transmittance measurements. Innovative features include IQ Accessory automatic recognition and IQ Start for push-button operation of routine measurements. The wide wavelength range from 190 to 1,100 nm offers versatile measurement for many different applications. Spectra Manager™ Suite*, the latest innovative, cross-platform spectroscopy software, or the iRM, a handheld controller with color LCD touch screen, both provide full system control and advanced data processing. *Spectra Manager™ CFR (for 21 CFR part 11 compliance) is available as an option.... Read More | The J-1000 Series Circular Dichroism spectrophotometers are specifically designed for high sensitivity measurements in the near- and far-UV regions, for scientists that need confidence in the data from characterization studies of biomolecule structure, function, and stability under a wide variety ofThe J-1000 Series Circular Dichroism spectrophotometers are specifically designed for high sensitivity measurements in the near- and far-UV regions, for scientists that need confidence in the data from characterization studies of biomolecule structure, function, and stability under a wide variety of experimental conditions. The J-1700 was specifically designed for more demanding near-infrared CD applications. In addition to the enhanced far-UV capabilities, researchers probing the chiral activity of molecules in the NIR spectral region now have the ability to obtain data at wavelengths up to 2,500 nm. The InGaAs detector has a wavelength range from 900 to 2,500 nm, while the PMT ranges from 163 to 960 nm. The automatic detector interchange allows researchers to obtain both far-UV and NIR measurements without having to manually switch detectors. The addition of a grating monochromator to the double-prism monochromator setup provides low stray light and high light intensity, generating CD signals with high S/N performance throughout a large spectral range.... Read More | The V-750 UV-Visible Spectrophotometer optical design uses precision double-beam optics with variable spectral bandwidth. A high sensitivity PMT detector provides accurate and reproducible measurements for low to high concentration samples. By controlling the high voltage applied to the PMT, the The V-750 UV-Visible Spectrophotometer optical design uses precision double-beam optics with variable spectral bandwidth. A high sensitivity PMT detector provides accurate and reproducible measurements for low to high concentration samples. By controlling the high voltage applied to the PMT, the dynode feedback offers a wider dynamic range than is generally found on uv-visible spectrophotometers. For high resolution measurements, such as gas and vapor phase spectroscopy, the spectral bandwidth can be set as narrow as 0.1 nm. Special low stray light slit settings which optimize the light image on the monochromator provide increased linearity to up to 5 absorbance units.... Read More | The V-760 UV-Visible Spectrophotometer includes a double monochromator for exceptional resolution with extremely low stray light (0.00008 %) for more accurate measurement over the widest photometric range (up to 8AU). The V-760 provides excellent sensitivity for diffuse reflectance or transmittance The V-760 UV-Visible Spectrophotometer includes a double monochromator for exceptional resolution with extremely low stray light (0.00008 %) for more accurate measurement over the widest photometric range (up to 8AU). The V-760 provides excellent sensitivity for diffuse reflectance or transmittance of solid and liquid samples using an integrating sphere. For high resolution measurements, such as gas and vapor phase spectroscopy, the spectral bandwidth can be set as narrow as 0.1 nm. Extended photometric linearity up to 8 Abs enables measurement of highly absorbing samples and is also useful for measurements of optical material with transmission characteristics that approach 0% T.... Read More | The V-770 UV-Visible/NIR Spectrophotometer features a unique single monochromator design for maximum light throughput with excellent absorbance linearity. A PMT detector is used for the UV to visible region and a Peltier-cooled PbS detector for the NIR region. |
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